United States. War Dept.. Lesson plans on practical firemanship.. Washington, D.C.. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc29967/. Accessed May 24, 2013.
United States. War Dept.. Lesson plans on practical firemanship.. Washington, D.C.. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc29967/. Accessed May 24, 2013.